Composition of matter for finishing wood.



r the quantity OEAELEB F. COOPER O CLEVELAND, OHIO.

meeoso.

'Eo Brewing.

To all whom it may concern:

Be it known thatI, CHARLES F. Coornm'a. citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Composition of Matter for l inishing Wood, of which the following is a specification.

My composition of matter is both a tiller and ,draining ground and consists, preferably, of the following ingredients. combined in substantially the proportions stated, viva: fifty per cent. (50%) zinc white. forty per cent. (40%) pigment (variant dry color). five per cent. (5%) shellac gum, four and nine-tenths per cent. (46 alcohol. Optional: one-tenth per cent. any tar product or sal soda. These ingredients are to be thoroughly mingled by agitation.

I find that either white lead or in certain cases chemical e uivalents of both zinc white and dry lead wi I produce equally satisfactor results as does the employment of zinc white stated in the above formula. For certain work, a combination of two or more equivalents (aggregating togethenapproxrmately fifty per cent. (50%) of this )ody" forming ingredient or covering. is also possible. For example, in enamel work and for fine grainin rouiid nirposes such as in the ease of l igi it oak, I find it best to use both zinc white and white lead in nearly equal quantities.

It is possible to use as a pigment either pumice stone, litharge, marble dust or yellow ocher. depending of course upon the color desired.

in )ltlCG of the shellac gum the following may be used: banana oil. ordinary shellac solution, or less satisfactorily, common glue. the latter of which is often found mixed with the cheaper shellac gums.

For the alcohol, which is adapted to cut or separate the compound and act as a vehicle, either benzol or other or some of each may be substituted.

Mention should be made that the onetcnth per cent (am) of either sal soda or any tar product stated in the formula above is not essential to the eliicacy of my preparation. I simply prefer to use one or the other and sometimes both of these. \Vhen neither of them is present as an ingredient, the one-tenth er cent. is added to falcohol used. The purpose epeeiilcatlon 'of Letters Iatent.

Patented Feb. 1, 1916.

of either the sal soda or any tar product or gum cam )hor is primarily to cause the 'mixture to s ip easily and incidentall tosupply a peifuine along with tlle 'lllcb ol, benzo or other as the case may be. I generally use a tar product, save in enamel work where the use of sal soda togrther with alittle water is preferable because thetar )rodu'ct would make the iinish yellow or otherwise darken it.

The great commercial advantage of my filler and graining'groun'd'resides inthis that it permits a piece of work to'be finished in an astoundingly smaller period oftime and with the production of results in every way as satisfactorvand for 'inside 'work'of even superior grade. Heretoforey' in so far as I am aware, when tillers known to the market had been applied and after a-short i interval rubbed oil, it was required that they 1 be allowed to become thoroughly dry whic consumed as a rule no less than twenty-four hours. In the case of my inventive composition, the subsequent finishing improvement may be undertaken, with certainty within an hour after its application.

The fillers with which the art is conversant today should not be )ermitted to dry as a coat but must be rubbed oif from five to ten minutes after they have been applied and thereafter, of these only so much as has filled the pores of the wood is permitted to thoroughly dry requiring however as just stated no less than twenty-four hours. The entire coat of my inventive composition, as contradistinguished, is eriiiitted to dry. In the case of soft woo s it may either be. left in this condition and finished to a polish by the application of 0. varnish. or scraped and supplied with some artificial grain.

In the case of hard woods, such as oak, my composition would be applied with the inclusion of a little color, then allowed to dry and finally, after no more than an hours time, surfaced with sandpa or used in conjunction with oil or turpentine. Thereafter, the work may be stained and shellaeked to bring out the color of the wood.

My inventive preparation is principally adapted in the way of durability for inside work where it lends bet r color. If intended to be applied in tie open air and subjected to inclement weather it must be protected by a good solid lead paint. Conlid sonantly when used upon soft wood indoors it is in etlect itself an alcohol paint. Its uick drying quantities commend its use also tor the retouching of old paintcd'interior woods which after being sponged with sal soda may be entirely finished with a single coat It is usually best to effect the mixing of my preparation in the following order. First cut the shellac gum which is usually in lump or owdered form with alcohol or some equiva ent, next add the tar product the simultaneous cutting of which is facilitated add benzol and lastly by adding the dry color and zinc white or its equivalent. Finally the proper consistency may be effected by adding additional alcohol. As a filler it is best to have it thinner than as a paint. If desired flour paste (starch) may be added to assist in binding the alcohol.

This invention permits of use also in the artificial graining of metal. In such case a distinct preparation must however first be applied as a. binder before my graining ground can be used.

My invention being thus described with suilicient thoroughness, what I desire to se- 1,1ee,es0

1. The herein described composition of matter for the manufacture of a wood linishmg compound, comprising lifty per cent.

zinc white, forty per cent. pigment (dry color), five per cent. shellac gum, and live per cent. alcohol.

2. The herein described composition of matter for the manufacture of a wood finishing compound, comprising about ninety per cent. of zinc white and any dry color-in nearly equal parts, mixed with the remainin )cr cent. as a mixture of shellac and alco io 3. The herein described composition of matter comprising approximately equal parts of a body-forming ingredient and a pigment, mixed with approxinmtely equal parts of shellac and alcohol, the proportion of the parts being substantially as spccilied.

Signed by me, this 24th day of May, 1913.

CHARLES l COOPER.

AttCStCd by CON 0. Cooren, Hanna N. Hmn.

Comm of thin patent may be obtained for live cent: each, by addressing the Commissioner of Patents. Washington, D. O. 

